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- PDB-4rul: Crystal structure of full-length E.Coli topoisomerase I in comple... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4rul | ||||||
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Title | Crystal structure of full-length E.Coli topoisomerase I in complex with ssDNA | ||||||
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![]() | ISOMERASE/DNA / TOPOISOMERASE 1A / ISOMERASE-DNA complex | ||||||
Function / homology | ![]() DNA topoisomerase activity / DNA topoisomerase / DNA topoisomerase type I (single strand cut, ATP-independent) activity / DNA topological change / chromosome / DNA binding / metal ion binding / cytosol Similarity search - Function | ||||||
Biological species | ![]() ![]() synthetic construct (others) | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Tan, K. / Chen, B. / Tse-Dinh, Y.C. | ||||||
![]() | ![]() Title: Structural basis for suppression of hypernegative DNA supercoiling by E. coli topoisomerase I. Authors: Tan, K. / Zhou, Q. / Cheng, B. / Zhang, Z. / Joachimiak, A. / Tse-Dinh, Y.C. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 348.5 KB | Display | ![]() |
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PDB format | ![]() | 277.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 3pwtS S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
-Protein / DNA chain , 2 types, 2 molecules AB
#1: Protein | Mass: 97635.047 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: C9QXS7, UniProt: P06612*PLUS, DNA topoisomerase |
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#2: DNA chain | Mass: 8997.819 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Non-polymers , 4 types, 47 molecules ![](data/chem/img/ZN.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/SO4.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/HOH.gif)
#3: Chemical | ChemComp-ZN / #4: Chemical | ChemComp-SO4 / #5: Chemical | ChemComp-GOL / | #6: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.15 Å3/Da / Density % sol: 60.89 % |
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Crystal grow | Temperature: 297 K / Method: vapor diffusion, sitting drop / pH: 6 Details: 0.125M ammonium sulfate, 0.1M MES, 1mM zinc sulfate, 19% PEG 5000 monomethyl ether, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 297K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 315r / Detector: CCD / Date: Mar 17, 2014 / Details: mirror |
Radiation | Monochromator: Si 111 crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97913 Å / Relative weight: 1 |
Reflection | Resolution: 2.9→38 Å / Num. all: 29533 / Num. obs: 29533 / % possible obs: 99.6 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -5 / Redundancy: 3.5 % / Biso Wilson estimate: 66.4 Å2 / Rmerge(I) obs: 0.064 / Net I/σ(I): 23.4 |
Reflection shell | Resolution: 2.9→2.95 Å / Redundancy: 3.6 % / Rmerge(I) obs: 0.676 / Mean I/σ(I) obs: 1.9 / % possible all: 100 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY: 3PWT Resolution: 2.9→37.735 Å / SU ML: 0.36 / σ(F): 1.35 / Phase error: 26.79 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.9→37.735 Å
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Refine LS restraints |
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LS refinement shell |
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Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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